CVE-2026-11541 (GCVE-0-2026-11541)
Vulnerability from cvelistv5
Published
2026-06-30 20:56
Modified
2026-07-29 18:12
Severity ?
7.4 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE
  • CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Summary
IBM CICS Transaction Gateway for Multiplatforms 9.1, 9.2, 9.3, and 10.1 IBM WebSphere Application Server 9.0, and 8.5 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.6 are affected by an HTTP request smuggling vulnerability.
References
Impacted products
Vendor Product Version
IBM CICS Transaction Gateway for Multiplatforms Version: 9.1
Version: 9.2
Version: 9.3
Version: 10.1
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href=\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=9.2.0.2-CICSTG-PH72094-WIN\u0026amp;source=SAR\" rel=\"nofollow\"\u003eWindows Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca href=\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=9.2.0.2-CICSTG-PH72094-ILNX\u0026amp;source=SAR\" rel=\"nofollow\"\u003eiLinux Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca href=\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=9.2.0.2-CICSTG-PH72094-ZLNX\u0026amp;source=SAR\" rel=\"nofollow\"\u003ezLinux Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eCICS Transaction Gateway for 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Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca href=\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=9.3.0.0-CICSTG-PH72094-WIN\u0026amp;source=SAR\" rel=\"nofollow\"\u003eWindows Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca href=\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=9.3.0.0-CICSTG-PH72094-ILNX\u0026amp;source=SAR\" rel=\"nofollow\"\u003eiLinux Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca href=\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=9.3.0.0-CICSTG-PH72094-ZLNX\u0026amp;source=SAR\" rel=\"nofollow\"\u003ezLinux Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca 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href=\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=10.1.0.0-CICSTG-PH72095-AIX\u0026amp;source=SAR\" rel=\"nofollow\"\u003eAIX Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca href=\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=10.1.0.0-CICSTG-PH72095-PLXLE\u0026amp;source=SAR\" rel=\"nofollow\"\u003epLinux Little Endian Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca href=\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=10.1.0.0-CICSTG-PH72095-WIN\u0026amp;source=SAR\" rel=\"nofollow\"\u003eWindows Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca 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          "value": "IBM strongly recommends addressing the vulnerabilities now by downloading and applying the CICS Transaction Gateway for Multiplatforms fixes.\n\n\n\nProduct\n\nVRMF\n\nAPAR\n\nRemediation/First Fix\n\nCICS Transaction Gateway for Multiplatforms9.1.0.0\n\n-\n\nPSIRT fixes for CICS Transaction Gateway for Multiplatforms will be provided only to customers covered by Extended Support and only upon request through an IBM Support case.\n\nCICS Transaction Gateway for Multiplatforms9.2.0.0\n\nPH72094\n\n\n\n AIX Link https://www.ibm.com/support/fixcentral/quickorder \n\n\n\n pLinux Big Endian Link https://www.ibm.com/support/fixcentral/quickorder \n\n\n\n Windows Link https://www.ibm.com/support/fixcentral/quickorder \n\n\n\n iLinux Link https://www.ibm.com/support/fixcentral/quickorder \n\n\n\n zLinux Link https://www.ibm.com/support/fixcentral/quickorder \n\n\n\n\n\nCICS Transaction Gateway for Multiplatforms9.3.0.0\n\nPH72094\n\n\n\n AIX Link https://www.ibm.com/support/fixcentral/quickorder \n\n\n\n pLinux Little Endian Link https://www.ibm.com/support/fixcentral/quickorder \n\n\n\n pLinux Big Endian Link https://www.ibm.com/support/fixcentral/quickorder \n\n\n\n Windows Link https://www.ibm.com/support/fixcentral/quickorder \n\n\n\n iLinux Link https://www.ibm.com/support/fixcentral/quickorder \n\n\n\n zLinux Link https://www.ibm.com/support/fixcentral/quickorder \n\n\n\n x86 Container Link https://www.ibm.com/support/fixcentral/quickorder \n\n\n\n 390x Container Link https://www.ibm.com/support/fixcentral/quickorder \n\nCICS Transaction Gateway for Multiplatforms10.1.0.0\n\nPH72095\n\n\n\n AIX Link https://www.ibm.com/support/fixcentral/quickorder \n\n\n\n pLinux Little Endian Link https://www.ibm.com/support/fixcentral/quickorder \n\n\n\n Windows Link https://www.ibm.com/support/fixcentral/quickorder \n\n\n\n iLinux Link https://www.ibm.com/support/fixcentral/quickorder \n\n\n\n zLinux Link https://www.ibm.com/support/fixcentral/quickorder \n\n\n\n x86 Container Link https://www.ibm.com/support/fixcentral/quickorder \n\n\n\n 390x Container Link https://www.ibm.com/support/fixcentral/quickorder"
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\"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"IBM\", \"product\": \"CICS Transaction Gateway for Multiplatforms\", \"versions\": [{\"status\": \"affected\", \"version\": \"9.1\"}, {\"status\": \"affected\", \"version\": \"9.2\"}, {\"status\": \"affected\", \"version\": \"9.3\"}, {\"status\": \"affected\", \"version\": \"10.1\"}]}], \"solutions\": [{\"lang\": \"en\", \"value\": \"IBM strongly recommends addressing the vulnerabilities now by downloading and applying the CICS Transaction Gateway for Multiplatforms fixes.\\n\\n\\n\\nProduct\\n\\nVRMF\\n\\nAPAR\\n\\nRemediation/First Fix\\n\\nCICS Transaction Gateway for Multiplatforms9.1.0.0\\n\\n-\\n\\nPSIRT fixes for CICS Transaction Gateway for Multiplatforms will be provided only to customers covered by Extended Support and only upon request through an IBM Support case.\\n\\nCICS Transaction Gateway for Multiplatforms9.2.0.0\\n\\nPH72094\\n\\n\\n\\n AIX Link https://www.ibm.com/support/fixcentral/quickorder \\n\\n\\n\\n pLinux Big Endian Link https://www.ibm.com/support/fixcentral/quickorder \\n\\n\\n\\n Windows Link https://www.ibm.com/support/fixcentral/quickorder \\n\\n\\n\\n iLinux Link https://www.ibm.com/support/fixcentral/quickorder \\n\\n\\n\\n zLinux Link https://www.ibm.com/support/fixcentral/quickorder \\n\\n\\n\\n\\n\\nCICS Transaction Gateway for Multiplatforms9.3.0.0\\n\\nPH72094\\n\\n\\n\\n AIX Link https://www.ibm.com/support/fixcentral/quickorder \\n\\n\\n\\n pLinux Little Endian Link https://www.ibm.com/support/fixcentral/quickorder \\n\\n\\n\\n pLinux Big Endian Link https://www.ibm.com/support/fixcentral/quickorder \\n\\n\\n\\n Windows Link https://www.ibm.com/support/fixcentral/quickorder \\n\\n\\n\\n iLinux Link https://www.ibm.com/support/fixcentral/quickorder \\n\\n\\n\\n zLinux Link https://www.ibm.com/support/fixcentral/quickorder \\n\\n\\n\\n x86 Container Link https://www.ibm.com/support/fixcentral/quickorder \\n\\n\\n\\n 390x Container Link https://www.ibm.com/support/fixcentral/quickorder \\n\\nCICS Transaction Gateway for Multiplatforms10.1.0.0\\n\\nPH72095\\n\\n\\n\\n AIX Link https://www.ibm.com/support/fixcentral/quickorder \\n\\n\\n\\n pLinux Little Endian Link https://www.ibm.com/support/fixcentral/quickorder \\n\\n\\n\\n Windows Link https://www.ibm.com/support/fixcentral/quickorder \\n\\n\\n\\n iLinux Link https://www.ibm.com/support/fixcentral/quickorder \\n\\n\\n\\n zLinux Link https://www.ibm.com/support/fixcentral/quickorder \\n\\n\\n\\n x86 Container Link https://www.ibm.com/support/fixcentral/quickorder \\n\\n\\n\\n 390x Container Link https://www.ibm.com/support/fixcentral/quickorder\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cdiv\u003e\u003cp\u003e\u003cstrong\u003eIBM strongly recommends addressing the vulnerabilities now by downloading and applying the CICS Transaction Gateway for Multiplatforms fixes.\u003c/strong\u003e\u003c/p\u003e\u003c/div\u003e\u003cdiv\u003e\u003ctable\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\u003cdiv\u003e\u003cstrong\u003eProduct\u003c/strong\u003e\u003c/div\u003e\u003c/td\u003e\u003ctd\u003e\u003cdiv\u003e\u003cstrong\u003eVRMF\u003c/strong\u003e\u003c/div\u003e\u003c/td\u003e\u003ctd\u003e\u003cdiv\u003e\u003cstrong\u003eAPAR\u003c/strong\u003e\u003c/div\u003e\u003c/td\u003e\u003ctd\u003e\u003cdiv\u003e\u003cstrong\u003eRemediation/First Fix\u003c/strong\u003e\u003c/div\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eCICS Transaction Gateway for Multiplatforms\u003c/td\u003e\u003ctd\u003e9.1.0.0\u003c/td\u003e\u003ctd\u003e\u003cp\u003e-\u003c/p\u003e\u003c/td\u003e\u003ctd\u003e\u003cdiv\u003ePSIRT fixes for CICS Transaction Gateway for Multiplatforms will be provided only to customers covered by Extended Support and only upon request through an IBM Support case.\u003c/div\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eCICS Transaction Gateway for Multiplatforms\u003c/td\u003e\u003ctd\u003e9.2.0.0\u003c/td\u003e\u003ctd\u003e\u003cp\u003ePH72094\u003c/p\u003e\u003c/td\u003e\u003ctd\u003e\u003cp\u003e\u003ca href=\\\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=9.2.0.2-CICSTG-PH72094-AIX\u0026amp;source=SAR\\\" rel=\\\"nofollow\\\"\u003eAIX Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca href=\\\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=9.2.0.2-CICSTG-PH72094-PLNX\u0026amp;source=SAR\\\" rel=\\\"nofollow\\\"\u003epLinux Big Endian Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca href=\\\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=9.2.0.2-CICSTG-PH72094-WIN\u0026amp;source=SAR\\\" rel=\\\"nofollow\\\"\u003eWindows Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca href=\\\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=9.2.0.2-CICSTG-PH72094-ILNX\u0026amp;source=SAR\\\" rel=\\\"nofollow\\\"\u003eiLinux Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca href=\\\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=9.2.0.2-CICSTG-PH72094-ZLNX\u0026amp;source=SAR\\\" rel=\\\"nofollow\\\"\u003ezLinux Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eCICS Transaction Gateway for Multiplatforms\u003c/td\u003e\u003ctd\u003e9.3.0.0\u003c/td\u003e\u003ctd\u003e\u003cp\u003ePH72094\u003c/p\u003e\u003c/td\u003e\u003ctd\u003e\u003cp\u003e\u003ca href=\\\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=9.3.0.0-CICSTG-PH72094-AIX\u0026amp;source=SAR\\\" rel=\\\"nofollow\\\"\u003eAIX Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca href=\\\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=9.3.0.0-CICSTG-PH72094-PLXLE\u0026amp;source=SAR\\\" rel=\\\"nofollow\\\"\u003epLinux Little Endian Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca href=\\\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=9.3.0.0-CICSTG-PH72094-PLNX\u0026amp;source=SAR\\\" rel=\\\"nofollow\\\"\u003epLinux Big Endian Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca href=\\\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=9.3.0.0-CICSTG-PH72094-WIN\u0026amp;source=SAR\\\" rel=\\\"nofollow\\\"\u003eWindows Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca href=\\\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=9.3.0.0-CICSTG-PH72094-ILNX\u0026amp;source=SAR\\\" rel=\\\"nofollow\\\"\u003eiLinux Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca href=\\\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=9.3.0.0-CICSTG-PH72094-ZLNX\u0026amp;source=SAR\\\" rel=\\\"nofollow\\\"\u003ezLinux Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca href=\\\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=9.3.0.0-CICSTG-PH72094-x86Container\u0026amp;source=SAR\\\" rel=\\\"nofollow\\\"\u003ex86 Container Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca href=\\\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=9.3.0.0-CICSTG-PH72094-s390xContainer\u0026amp;source=SAR\\\" rel=\\\"nofollow\\\"\u003e390x Container Link\u003c/a\u003e\u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003eCICS Transaction Gateway for Multiplatforms\u003c/td\u003e\u003ctd\u003e10.1.0.0\u003c/td\u003e\u003ctd\u003e\u003cp\u003ePH72095\u003c/p\u003e\u003c/td\u003e\u003ctd\u003e\u003cp\u003e\u003ca href=\\\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=10.1.0.0-CICSTG-PH72095-AIX\u0026amp;source=SAR\\\" rel=\\\"nofollow\\\"\u003eAIX Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca href=\\\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=10.1.0.0-CICSTG-PH72095-PLXLE\u0026amp;source=SAR\\\" rel=\\\"nofollow\\\"\u003epLinux Little Endian Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca href=\\\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=10.1.0.0-CICSTG-PH72095-WIN\u0026amp;source=SAR\\\" rel=\\\"nofollow\\\"\u003eWindows Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca href=\\\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=10.1.0.0-CICSTG-PH72095-ILNX\u0026amp;source=SAR\\\" rel=\\\"nofollow\\\"\u003eiLinux Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca href=\\\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=10.1.0.0-CICSTG-PH72095-ZLNX\u0026amp;source=SAR\\\" rel=\\\"nofollow\\\"\u003ezLinux Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca href=\\\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=10.1.0.0-CICSTG-PH72095-x86Container\u0026amp;source=SAR\\\" rel=\\\"nofollow\\\"\u003ex86 Container Link\u003c/a\u003e\u003c/p\u003e\u003cp\u003e\u003ca href=\\\"https://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FWebSphere%2FCICS+Transaction+Gateway+for+Multiplatforms\u0026amp;fixids=10.1.0.0-CICSTG-PH72095-s390xContainer\u0026amp;source=SAR\\\" rel=\\\"nofollow\\\"\u003e390x Container Link\u003c/a\u003e\u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003e\u003c/p\u003e\", \"base64\": false}]}], \"references\": [{\"url\": \"https://www.ibm.com/support/pages/node/7281750\", \"tags\": [\"vendor-advisory\", \"patch\"]}], \"x_generator\": {\"engine\": \"ibm-cvegen\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"IBM CICS Transaction Gateway for Multiplatforms 9.1, 9.2, 9.3, and 10.1 IBM WebSphere Application Server 9.0, and 8.5 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.6 are affected by an HTTP request smuggling vulnerability.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eIBM CICS Transaction Gateway for Multiplatforms 9.1, 9.2, 9.3, and 10.1 IBM WebSphere Application Server 9.0, and 8.5 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.6 are affected by an HTTP request smuggling vulnerability.\u003c/p\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-444\", \"description\": \"CWE-444 Inconsistent Interpretation of HTTP Requests (\u0027HTTP Request/Response Smuggling\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"9a959283-ebb5-44b6-b705-dcc2bbced522\", \"shortName\": \"ibm\", \"dateUpdated\": \"2026-07-29T18:12:49.178Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-11541\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-07-29T18:12:49.178Z\", \"dateReserved\": \"2026-06-08T02:55:08.653Z\", \"assignerOrgId\": \"9a959283-ebb5-44b6-b705-dcc2bbced522\", \"datePublished\": \"2026-06-30T20:56:04.135Z\", \"assignerShortName\": \"ibm\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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